Home / 205,055.28-282,900.60-120,141.36

Finding the Fourth Proportional to 205,055.28, 282,900.60 and 120,141.36

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Solution

The fourth proportional to 205,055.28, 282,900.60 and 120,141.36 is: 165,750.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,055.28 : 282,900.60 = 120,141.36 : x
  2. Step 2: Convert to fraction form
    205,055.28/282,900.60 = 120,141.36/x
  3. Step 3: Cross multiply
    205,055.28x = 282,900.60 × 120,141.36
  4. Step 4: Simplify right side
    205,055.28x = 33,988,062,828.82
  5. Step 5: Solve for x
    x = 33,988,062,828.82/205,055.28
  6. Step 6: Final answer
    x = 165,750.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.